Title
Efficient measurement of higher-order statistics of stochastic processes.
Abstract
This paper is devoted to analysis of block multi-indexed higher-order covariance matrices, which can be used for the least-squares estimation problem. The formulation of linear and nonlinear least squares estimation problems is proposed, showing that their statements and solutions lead to generalized 'normal equations', employing covariance matrices of the underlying processes. Then, we provide a class of efficient algorithms to estimate higher-order statistics (generalized multi-indexed covariance matrices), which are necessary taking in mind practical aspects of the nonlinear treatment of the least-squares estimation problem. The algorithms are examined for different higher-order and non-Gaussian processes (time-series) and an impact of signal properties on covariance matrices is analysed.
Year
DOI
Venue
2018
10.14736/kyb-2018-5-0865
KYBERNETIKA
Keywords
Field
DocType
covariance matrix,higher-order statistics,adaptive,nonlinear
Mathematical optimization,Higher-order statistics,Stochastic process,Mathematics
Journal
Volume
Issue
ISSN
54
5
0023-5954
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Wladyslaw Magiera100.68
Urszula Libal200.68
Agnieszka Wielgus300.68